Invisible shielding window

The invention relates to the field of building door/window protection devices, in particular to an invisible shielding window. The invisible shielding window comprises a frame, a steel wire, steel wire fasteners, a cover plate and an alarm, wherein the frame is a rectangular body formed by combination of an upper frame body, a lower frame body, a left vertical frame body and a right vertical frame body in a closed mode, a plurality of wire holes are evenly and symmetrically formed in the upper frame body and the lower frame body, the steel wire fasteners are installed at the bent portions of the sections where the steel wire is connected with the upper frame body and the lower frame body, and the steel wire penetrates through the wire holes in a vertically reciprocating mode and is vertically fixed between the upper frame body and the lower frame body through fixing pillars of the steel wire fasteners; electric leads are connected with the head end and the tail end of the steel wire respectively, the alarm is